As four of the world’s largest oil and gas producers blocked UN climate talks from “welcoming” a key scientific report on global warming, Australia’s silence during a key debate is being viewed as tacit support for the four oil allies: the US, Saudi Arabia, Russia and Kuwait.

The end of the first week of the UN climate talks – known as COP24 – in Katowice, Poland, has been mired by protracted debate over whether the conference should “welcome” or “note” a key report from the Intergovernmental Panel on Climate Change.

The IPCC’s 1.5 degrees report, released in October, warned the world would have to cut greenhouse gas emissions by about 45% by 2030 to limit global warming to 1.5C and potentially avoid some of the worst effects of climate change, including a dramatically increased risk of drought, flood, extreme heat and poverty for hundreds of millions of people.

The UN climate conference commissioned the IPCC report, but when that body went to “welcome” the report’s findings and commit to continuing its work, four nations – the US, Saudi Arabia, Kuwait and Russia, all major oil and gas producers – refused to accept the wording, insisting instead that the convention simply “note” the findings.